#define _CRT_SECURE_NO_WARNINGS 1

#include <iostream>
#include <stdlib.h>

int a = 0;

namespace xxqsg
{
    int a = 10;
    int tmp = 20;

    int Add(int left, int right)
    {
        return left + right;
    }

    struct Node
    {
        struct Node* next;
        int val;
    };
}

namespace N1
{
    int a;
    int b;
    int Add(int left, int right)
    {
        return left + right;
    }
    namespace N2
    {
        int c = 3;
        int d = 4;
        int Sub(int left, int right)
        {
            return left - right;
        }
    }
}

using std::cout;
using std::endl;
using std::cin;

int main()
{
    int a = 0;
    double b = 3.1415926;

    cin >> a >> b;

    cout << a << ' ' << b << endl;
}